Note: The cylinder head and cylinder head cover may only be replaced as a set. After installing the camshafts, the engine must not be started for about 30 minutes. The hydraulic gap adjusters must be in place (otherwise the valves may collide with the pistons). After working on the valve actuator, carefully rotate the engine at least 2 revolutions to ensure that no valve hits the piston on start up. Seals and sealing rings must be replaced. After removing the camshafts, adapt the length of the chains.
1. Exhaust valve: do not process, only lapping is allowed
2. Cylinder head
3. Oil seal: replace
4. Valve spring
5. Valve spring plate
6. Valve cotters
7. Hydraulic compensator: do not interchange; oil the work surface
8. Locking bracket: for hydraulic compensator
9. Roller rocker: mark the mounting position for reinstallation; check the ease of movement of the bearing with cylindrical rollers; lubricate working surfaces with oil before installation
10. Exhaust camshaft; runout: max. 0.04 mm
11. Spring: not a spare part
12. Ball: camshaft clutch
13. Cylinder head cover: with integrated camshaft bearings; revision is not allowed; remove old sealant
14. Bolt: Loosen
15. Intake camshaft; runout: max. 0.04mm
16. Landing pin
17. Landing pin
18. Inlet valve: do not process, only grinding is allowed